Lens mold closing machine

Abstract

The application discloses a lens mold closing machine, which solves the problems of low efficiency and insufficient positioning accuracy of traditional single-head mold closing equipment through the cooperative design of a double-combination mold closing mechanism and a directional conveying system. The lens mold closing machine comprises an A / B mold feeding belt, a mold closing discharge belt and two sets of symmetrically arranged mold closing mechanisms. The mold closing mechanism adopts coaxially arranged upper spindles and upper suction wheels, lower spindles and lower suction wheels, and cooperates with a lower suction wheel lifting mechanism to realize accurate lifting positioning of the mold, wherein the lower suction wheel can sink to make the mold fall to the mold closing discharge belt. The positioning mechanism is provided with movable positioning clamping jaws and a driving mechanism thereof, and can be moved to a mold closing station after completing mold clamping positioning at the end of the A / B mold feeding belt. The mold closing discharge belt adopts a three-stage conveying structure, and inclined guide sliding tables are arranged at the first and second ends of the mold closing discharge belt, so that the mold is automatically guided to the third end of the mold closing discharge belt for centralized output, and the conveying efficiency is significantly improved.

Description

Technical Field

[0001] This application relates to the field of lens processing technology, and in particular to a lens mold closing machine. Background Technology

[0002] The integrated lens mold-making and casting machine is an automated device that integrates mold closing, resin casting, and sealing processes, primarily used for the efficient production of resin lenses. The integrated lens mold-making and casting machine involves multiple independent processing stations (such as feeding, mold closing, casting, and unloading), and the material transfer efficiency and coordination between these stations directly affect production quality and cost.

[0003] Mold assembly is a crucial step in resin lens production. A robotic arm is needed to precisely align and fix the upper mold (concave mold) and lower mold (convex mold) to form a sealed casting cavity. In traditional processes, mold transfer often relies on manual labor or a single robotic arm, resulting in low efficiency in coordinating upstream and downstream workstations. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this application is to provide a lens mold closing machine, which can improve the connection efficiency between front and rear workstations, thereby improving the production efficiency of the lens production line.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] This application provides a lens mold clamping machine, which includes: an A-mold feeding belt, a B-mold feeding belt, and a mold clamping and ejection belt; a clamping mechanism, which has two sets, located on opposite sides of the A-mold feeding belt and the B-mold feeding belt. The clamping mechanism includes an upper spindle and a lower spindle driven by a servo motor for lifting. Suction rollers are provided at opposite ends of the upper and lower spindles. The upper and lower spindles can rotate simultaneously around their axes. A tape-applying mechanism is used to apply tape to the outer circumference of the A-mold and B-mold to fix them. After the A-mold and B-mold are clamped, they are supported on the lower spindle. The mold clamping and ejection belt is located between the upper and lower spindles and is higher than the original position of the lower spindle. The lower spindle is lowered to allow support to be placed on the lower spindle. The molds are placed on the mold closing and ejection belts; the positioning mechanism is located at the ends of the A mold feeding belt and the B mold feeding belt. The positioning mechanism includes a positioning gripper three and a positioning gripper three moving mechanism. The positioning gripper three is used to grip and position the A mold and the B mold. The positioning gripper three moving mechanism is connected to the positioning gripper three to drive the positioning gripper three to move to the mold closing mechanism; the mold closing and ejection belts include mold closing and ejection belt one, mold closing and ejection belt two and mold closing and ejection belt three. The lower suction rollers of the two mold closing mechanisms are respectively located on mold closing and ejection belt one and mold closing and ejection belt two. The ends of mold closing and ejection belt one and mold closing and ejection belt two are provided with guide slides. The guide slides are inclined to guide the molds on mold closing and ejection belt one or mold closing and ejection belt two to mold closing and ejection belt three.

[0007] As a preferred technical solution, the lens mold clamping machine further includes: an A-mold positioning and picking mechanism, which is located at the front end of the A-mold feeding belt. The A-mold positioning and picking mechanism includes a positioning gripper, a positioning gripper opening and closing cylinder, a suction cup, a suction cup 2 translation mechanism, and a suction cup 2 lifting mechanism. The positioning gripper opening and closing cylinder is connected to the positioning gripper to drive the positioning gripper to open and close. The suction cup 2 translation mechanism is connected to the suction cup 2 to drive the suction cup 2 to translate. The suction cup 2 lifting mechanism is connected to the suction cup 2 to drive the suction cup 2 to lift.

[0008] As a preferred technical solution, the lens mold clamping machine further includes: a B-mold positioning and loading mechanism; the B-mold positioning and loading mechanism includes a second positioning gripper, a second positioning gripper opening and closing cylinder, a second positioning gripper translation mechanism, a second B-mold lifting platform, and a first B-mold lifting platform lifting cylinder; the second positioning gripper opening and closing cylinder is connected to the second positioning gripper to drive the second positioning gripper to open and close, and the second positioning gripper translation mechanism is connected to the second positioning gripper to drive the second positioning gripper to translate; the second B-mold lifting platform and the first B-mold lifting platform lifting cylinder are located at the front end of the B-mold feeding belt, and the second B-mold lifting platform lifting cylinder is connected to the second B-mold lifting platform to drive the second B-mold lifting platform to rise and fall.

[0009] Compared with the prior art, the beneficial effects of this application are as follows:

[0010] The segmented design of the mold closing and ejection belt (molding closing and ejection belts one, two, and three) and the inclined connection of the guide slide ensure that the mold is quickly transferred to the next process after mold closing, avoiding accumulation or idleness and optimizing the production cycle. The integrated design of the mold closing mechanism with the feeding and ejection belts reduces the number of times the mold is transferred between different devices, achieving a seamless connection of "feeding-mold closing-ejection", thereby improving the production efficiency of the lens production line. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the integrated lens molding and casting machine of this application;

[0012] Figure 2 This is a schematic diagram of the feeding machine of this application;

[0013] Figure 3 This is a schematic diagram of the mold clamping machine of this application;

[0014] Figure 4 This is a structural schematic diagram of the mold clamping machine from another perspective;

[0015] Figure 5 This is a structural schematic diagram of the mold clamping machine from another perspective;

[0016] Figure 6 This is a schematic diagram of the casting machine used in this application;

[0017] Figure 7This is a structural schematic diagram of the casting machine of this application from another perspective;

[0018] Figure 8 This is a structural schematic diagram of the latter set of casting machines in this application;

[0019] Figure 9 This is a schematic diagram of the material feeding machine of this application;

[0020] Figure 10 This is a structural schematic diagram of the feeding machine of this application from another perspective;

[0021] Among them: 1. Lens mold-closing and casting integrated machine;

[0022] 11. Feeding machine; 111. A mold frame conveyor belt; 1111. A mold frame infeed conveyor belt; 1112. A mold frame outfeed conveyor belt; 112. B mold frame conveyor belt; 1121. B mold frame infeed conveyor belt; 1122. B mold frame outfeed conveyor belt; 113. A mold frame placement platform; 1131. A mold frame infeed and outfeed conveyor belt; 114. B mold frame placement platform; 1141. B mold frame infeed and outfeed conveyor belt; 116. Forward and reverse motor; 117. Placement platform lifting cylinder; 118. A mold feeding belt; 119. B mold feeding belt; 11a. Robotic arm; 11a1. Swing arm one; 11a2. Swing arm two; 11b. Suction cup frame one; 11c. Suction cup one; 11d. Connecting frame; 11e. Top plate block;

[0023] 12. Mold clamping machine; 121. A-mold feed belt; 122. B-mold feed belt; 123. Positioning mechanism; 124. Mold clamping mechanism; 126. Mold closing and ejection belt; 1261. Mold closing and ejection belt one; 1262. Mold closing and ejection belt two; 1263. Mold closing and ejection belt three; 1264. Guide slide; 127. Positioning gripper one; 128. Positioning gripper one opening and closing cylinder; 129. Suction cup two; 12a. Suction cup two translation mechanism; 12b. Suction cup two lifting mechanism; 12c. Positioning gripper two; 12d. Positioning gripper two opening and closing cylinder; 12e. Positioning gripper two translation mechanism; 12f. B mold lifting platform one; 12g. B mold lifting platform one lifting cylinder; 12h. B mold lifting platform two; 12i. B mold lifting platform two lifting cylinder; 12j. Positioning gripper three; 12k. Positioning gripper three moving mechanism; 12m. Upper spindle; 12n. Upper suction wheel; 12o. Lower spindle; 12p. Lower suction wheel;

[0024] 13. Casting machine; 131. Mold casting feed belt; 132. Mold casting discharge belt; 133. Positioning gripper four; 134. Positioning gripper four opening and closing cylinder; 135. Suction cup five; 136. Suction cup five translation mechanism; 137. Suction cup five lifting mechanism; 138. Suction cup three; 139. Suction cup three lifting mechanism; 13a. Gripper four; 13b. Gripper four opening and closing cylinder; 13c. Gripper four rotation cylinder; 13d. Gripper four translation module; 13e. Tooling suction cup; 13f. Adhesive tape tearing mechanism; 13g. Casting mechanism; 13h. Adhesive tape head mechanism;

[0025] 14. Feeding machine; 141. Mold feeding belt; 142. Suction cup four; 143. Suction cup four rotary cylinder; 144. Suction cup four lifting module; 145. Suction cup four front and rear translation module; 146. Suction cup four left and right translation module; 147. Mold frame placement rack; 148. Mold frame support plate; 149. Support plate lifting mechanism; 14a. Mold frame fixing mechanism; 14b. Roller shaft; 14d. Mold storage belt; 14e. Corner cylinder; 14f. Mold frame translation cylinder. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, this application provides a lens mold-forming and casting integrated machine, which includes: a loading machine 11, a mold-forming machine 12, a casting machine 13, and a unloading machine 14. Wherein, the definitions are... Figure 1 The directions shown are up, down, left, right, front, and back.

[0028] The loading machine 11 is used for loading lens molds A and B. In optical lens manufacturing, lens molds A and B refer to molds used in pairs, corresponding to two sides of the lens respectively. The loading machine 11 is connected to the mold closing machine 12 to input lens molds A and B into the mold closing machine 12. The mold closing machine 12 is used for closing lens molds A and B. In optical lens manufacturing, lens mold closing refers to fixing molds A and B relative to each other to form a cavity for lens forming. The mold closing machine 12 is connected to the casting machine 13, and the mold closing machine 12 sends the closed lens mold into the casting machine 13. The casting machine 13 is used for lens casting. In optical lens manufacturing, lens casting refers to the process of injecting liquid materials (such as resin, molten glass, etc.) into the mold cavity, and then solidifying or cooling to form a lens. The casting machine 13 is connected to the unloading machine 14, and the casting machine 13 sends the cast lens into the unloading machine 14. The unloading machine 14 is used for unloading and framing the finished lenses.

[0029] like Figure 2As shown, the feeding machine 11 includes a piece-picking mechanism, an A-mold feeding belt 118, and a B-mold feeding belt 119. The A-mold feeding belt 118 and the B-mold feeding belt 119 are arranged vertically, and the B-mold feeding belt 119 extends at least partially relative to the A-mold feeding belt 118. The piece-picking mechanism is used to grab the A-mold within the A-mold frame and place it on the A-mold feeding belt 118. The piece-picking mechanism is also used to grab the B-mold within the B-mold frame and place it on the B-mold feeding belt 119.

[0030] More specifically, the picking mechanism includes a robotic arm 11a, a suction cup holder 11b, and several suction cups 11c.

[0031] The robotic arm 11a includes a first swing arm 11a1 and a second swing arm 11a2. The two opposite ends of the first swing arm 11a1 are a first end and a second end, respectively. A first rotating shaft is fixedly connected to the first end of the first swing arm 11a1, and a rotation drive mechanism for driving the first rotating shaft is connected to the first rotating shaft. A second rotating shaft is rotatably connected to the second end of the first swing arm 11a1. The two opposite ends of the second swing arm 11a2 are a third end and a fourth end, respectively. A second rotating shaft is fixedly connected to the third end of the second swing arm 11a2, and a rotation drive mechanism for driving the second rotating shaft is connected to the second rotating shaft. The rotation drive mechanisms of the first and second swing arms 11a1 and 11a2 are rotary motors, etc. A third rotating shaft is rotatably connected to the fourth end of the second swing arm 11a2. The axes of the first, second, and third rotating shafts are all along the vertical direction. A connecting frame 11d is fixedly connected to the lower end of the third rotating shaft. The third rotating shaft and the second swing arm 11a2 are telescopically connected in the vertical direction. As one implementation, the third rotating shaft is connected to a lifting motor for driving the third rotating shaft to rise and fall.

[0032] A suction cup holder 11b is rotatably connected to the connecting frame 11d. The suction cup holder 11b is fixedly mounted on the fourth rotating shaft, which is rotatably connected to the connecting frame 11d. The axis of the fourth rotating shaft is horizontal. A rotation drive mechanism for the suction cup holder 11b is connected to the fourth rotating shaft. The rotation drive mechanism for the suction cup holder 11b is a rotary cylinder or similar device. Several suction cups 11c are fixedly mounted side-by-side on the suction cup holder 11b.

[0033] The aforementioned piece-picking mechanism adopts a graded transmission system of swing arm 11a1 and swing arm 21a2, which improves the flexibility of the piece-picking mechanism, so that mold A and mold B can be quickly placed from mold A frame and mold B frame into the piece-feeding mechanism.

[0034] The suction cup holder 11b rotary drive mechanism drives the suction cup 11c to rotate 180 degrees. Since the lens forming surfaces of lens molds A and B have different orientations, and suction cup 11c needs to pick up the non-lens forming surfaces of lens molds A and B, the suction cup holder 11b rotary drive mechanism drives suction cup 11c to rotate 180 degrees to pick up lens molds A and B respectively. When the lens picking mechanism picks up lens molds A and B within the A mold frame and B mold frame using suction cup 11c, the suction cup holder 11b rotary drive mechanism drives suction cup 11c to rotate, making suction cup 11c vertically pick up lens molds A and B. When the lens picking mechanism moves lens molds A and B to the A mold loading belt 118 and B mold loading belt 119 for horizontal placement, the suction cup holder 11b rotary drive mechanism drives suction cup 11c to rotate, making suction cups horizontally place lens molds A and B.

[0035] In another embodiment, the robotic arm 11a can be replaced by a three-axis gantry. The three-axis gantry drives the connecting frame 11d to move along the front-back direction, the left-right direction, and the up-down direction.

[0036] Furthermore, the feeding machine 11 also includes a cleaning mechanism. The picking mechanism first grabs the A mold in the A mold frame and the B mold in the B mold frame, and places them on the cleaning mechanism. After the cleaning mechanism performs surface treatment on the A mold and the B mold respectively, the picking mechanism places the A mold and the B mold on the A mold feeding belt 118 and the B mold feeding belt 119 respectively.

[0037] Furthermore, the feeding machine 11 also includes a frame feeding mechanism. The frame feeding mechanism includes an A-mold frame conveyor belt 111, a B-mold frame conveyor belt 112, an A-mold frame placement platform 113, and a B-mold frame placement platform 114. The A-mold frame conveyor belt 111 and the B-mold frame conveyor belt 112 are arranged on the left and right sides.

[0038] The A-mold frame conveyor belt 111 includes an A-mold frame infeed conveyor belt 1111 and an A-mold frame outfeed conveyor belt 1112, which are arranged vertically. The B-mold frame conveyor belt 112 includes a B-mold frame infeed conveyor belt 1121 and a B-mold frame outfeed conveyor belt 1122, which are arranged vertically. The A-mold frame infeed conveyor belt 1111, the A-mold frame outfeed conveyor belt 1112, the B-mold frame infeed conveyor belt 1121, and the B-mold frame outfeed conveyor belt 1122 are each driven by a separate drive motor.

[0039] A mold frame placement platform 113 and B mold frame placement platform 114 are respectively located behind A mold frame conveyor belt 111 and B mold frame inlet conveyor belt. A mold frame placement platform 113 includes A mold frame inlet and outlet conveyor belt 1131, and B mold frame placement platform 114 includes B mold frame inlet and outlet conveyor belt 1141.

[0040] Conveyor belts 1131 (A mold frame inlet / outlet) and 1141 (B mold frame inlet / outlet) are connected to forward / reverse motors 116. Lifting cylinders 117 are connected to the bottom of placement platforms 113 (A mold frame) and 114 (B mold frame). The lifting cylinders 117 drive the lifting of placement platforms 113 (A mold frame) and 114 (B mold frame) so that placement platform 113 (A mold frame) is connected to conveyor belts 1111 (A mold frame inlet) and 1112 (A mold frame outlet), respectively, and placement platform 114 (B mold frame outlet) is connected to conveyor belts 1121 (B mold frame inlet) and 1122 (B mold frame outlet), respectively.

[0041] Furthermore, the feeding machine 11 also includes a B-mold ejection mechanism. The A-mold feeding belt 118 and the B-mold feeding belt 119 are arranged vertically. Both the A-mold feeding belt 118 and the B-mold feeding belt 119 include two parallel belts. The B-mold ejection mechanism is located at one end of the B-mold feeding belt 119. The B-mold is placed on the B-mold feeding belt 119, and after being ejected by the B-mold ejection mechanism, it is conveyed by the B-mold feeding belt 119.

[0042] The B-mold ejection mechanism is designed because: since the lens is curved, both the A-mold and B-mold are also curved; during conveying, the forming surfaces of the A-mold and B-mold used for lens forming face upwards to avoid damage caused by friction between the forming surfaces of the A-mold and B-mold and the conveyor belt; the forming surface of the A-mold is concave, while its outer surface is convex, so the A-mold can make good contact with the A-mold feeding belt 118 and be conveyed smoothly during conveying; however, the forming surface of the B-mold is convex, while its outer surface is concave, so there may be a positional deviation between the B-mold and the B-mold feeding belt 119 during conveying, causing the B-mold to not make good contact with the B-mold feeding belt 119; the B-mold ejection mechanism is designed to eject and position the B-mold to the middle of the B-mold feeding belt 119, so that the B-mold can make good contact with the B-mold feeding belt 119 and be conveyed smoothly during conveying.

[0043] The B-mold ejection mechanism includes: a B-mold top plate, several ejector blocks 11e, and ejector cylinders. The ejector cylinders drive the B-mold top plate to rise and fall. The ejector blocks 11e are all fixedly mounted on the B-mold top plate, and the ejector blocks 11e lift the B-mold, positioning it in the middle of the B-mold feeding strip 119.

[0044] Mold frames A and B are conveyed via conveyor belts 1111 and 1121, respectively. Conveyor belts 1131 and 1141 then transport the mold frames A and B to placement platforms 113 and 114. A lifting cylinder 117 lowers these platforms, aligning them with conveyor belts 1112 and 1122. A picking mechanism uses suction cups to pick up the mold frames. Take the A mold and B mold from the A mold frame placement platform 113 and the B mold frame placement platform 114, and place them on the A mold loading belt 118 and the B mold loading belt 119 to send them to the subsequent work station; after the A mold and B mold from the A mold frame and the B mold frame are taken out, the forward and reverse motor 116 flips, and the empty A mold frame is sent out through the A mold frame in and out conveyor belt 1131 and the A mold frame out conveyor belt 1112, and the empty B mold frame is sent out through the B mold frame in and out conveyor belt 1141 and the B mold frame out conveyor belt 1122.

[0045] like Figure 3 , Figure 4 and Figure 5 As shown, the mold closing machine 12 includes an A mold feeding belt 121, a B mold feeding belt 122, a positioning mechanism 123, a mold closing mechanism 124, and a mold closing and ejection belt 126.

[0046] The A-mold feed belt 121 is connected to the A-mold loading belt 118, and the B-mold feed belt 122 is connected to the B-mold loading belt 119. In this application, the A-mold loading belt 118 is perpendicular to the A-mold feed belt 121, and the B-mold loading belt 119 is perpendicular to the B-mold feed belt 122.

[0047] The lens molding and casting integrated machine also includes an A mold positioning and picking mechanism and a B mold positioning and picking mechanism. The A mold positioning and picking mechanism is used to grab the A mold on the A mold feeding belt 118 and place it in the middle of the A mold feeding belt 121. The B mold positioning and picking mechanism is used to grab the B mold on the B mold feeding belt 119 and place it in the middle of the B mold feeding belt 122.

[0048] The A-mold positioning and handling mechanism includes a positioning gripper 127, a positioning gripper opening and closing cylinder 128, a suction cup 129, a suction cup translation mechanism 12a, and a suction cup lifting mechanism 12b, all located at the end of the A-mold loading belt 118. The positioning gripper opening and closing cylinder 128 is connected to the positioning gripper 127 to drive the positioning gripper 127 to open and close along the width direction of the A-mold loading belt 118, thereby positioning the A-mold. The suction cup translation mechanism 12a is connected to the suction cup 129 to drive the suction cup 129 to translate along the length direction of the A-mold loading belt 118, and the suction cup lifting mechanism 12b is connected to the suction cup 129 to drive the suction cup 129 to rise and fall. In this application, the suction cup translation mechanism 12a is a translation motor, etc., and the suction cup lifting mechanism 12b is a lifting cylinder, etc. Suction cup 2 129 descends to pick up mold A, then rises and moves horizontally above mold A feed belt 121, and then descends again to place mold A on mold A feed belt 121. By controlling the stroke of suction cup 2 translation mechanism 12a, suction cup 2 129 is positioned in the middle of mold A feed belt 121.

[0049] The B-mold positioning and loading mechanism includes a second positioning gripper 12c, a second positioning gripper opening and closing cylinder 12d, a second positioning gripper translation mechanism 12e, a first B-mold lifting platform 12f, a first B-mold lifting platform lifting cylinder 12g, a second B-mold lifting platform 12h, and a second B-mold lifting platform 12f lifting cylinder. The second positioning gripper 12c, the second positioning gripper opening and closing cylinder 12d, the first B-mold lifting platform 12f, and the first B-mold lifting platform lifting cylinder 12g are located at the end of the B-mold loading belt 119. The first B-mold lifting platform lifting cylinder 12g is connected to the first B-mold lifting platform 12f to drive the first B-mold lifting platform 12f to rise and fall, causing the B-mold on the B-mold loading belt 119 to be lifted to the position of the second positioning gripper 12c. Positioning gripper two opening and closing cylinder 12d is connected to positioning gripper two 12c to drive positioning gripper two 12c to open and close along the width direction of B mold feeding strip 119, so that B mold is positioned. Positioning gripper two translation mechanism 12e is connected to positioning gripper two 12c to drive positioning gripper two 12c to translate along the length direction of B mold feeding strip 119. In this application, positioning gripper two translation mechanism 12e is a translation motor, etc. B mold lifting platform two 12h and B mold lifting platform two lifting cylinder 12i are located at the front end of B mold feeding strip 122. B mold lifting platform two lifting cylinder 12i is connected to B mold lifting platform two 12h to drive B mold lifting platform two 12h to rise and fall. B mold lifting platform two 12h descends so that B mold on B mold lifting platform two 12h falls onto B mold feeding strip 122. The B-mold lifting platform 12f rises, lifting the B-mold on the B-mold feeding belt 119 to the positioning gripper 12c; the positioning gripper 12c clamps the B-mold; the positioning gripper 12c moves the B-mold onto the B-mold lifting platform 12h, and the positioning gripper 12c releases the B-mold; the B-mold lifting platform 12h descends so that the B-mold on the B-mold lifting platform 12h falls onto the B-mold feeding belt 122.

[0050] The positioning mechanism 123 is located at the ends of the A-mold feeding belt 121 and the B-mold feeding belt 122. The positioning mechanism 123 includes a positioning gripper 12j and a positioning gripper moving mechanism 12k. The positioning gripper 12j is used to grip and position the A-mold and the B-mold. The positioning gripper moving mechanism 12k is connected to the positioning gripper 12j to drive the positioning gripper 12j to move to the mold closing mechanism 124. The specific structure of the positioning gripper moving mechanism 12k can be found in the "Central Parallel Clamping Block System 200" in Chinese Patent Document CN103264461B, "Fully Automatic Anti-Eccentric Adhesive Tape Mold Closing Machine 12 for Lenses".

[0051] Specifically, the positioning gripper 312j includes an A-mold positioning arm, a B-mold positioning arm, an A-mold center positioning cylinder, a B-mold center positioning cylinder, a locking cylinder, and a B-mold rotation device, all arranged vertically. The A-mold center positioning cylinder and the A-mold positioning arm clamp the A-mold. After the B-mold center positioning cylinder and the B-mold positioning arm clamp the B-mold, the B-mold center positioning cylinder releases its pressure while the locking cylinder locks and positions the B-mold. Then, the B-mold loading cylinder performs a second loading. The B-mold rotation device drives the lens B-mold to rotate. Positioning wheels are installed inside the A-mold positioning arm and the B-mold positioning arm.

[0052] A positioning cylinder is located at the rear end of the A-mold feeding belt 121. Above the positioning cylinder is an A-mold suction cup, which is connected to an A-mold sheet suction cylinder. Both the A-mold suction cup and the A-mold sheet suction cylinder are mounted on the A-mold sheet feeding cylinder. The A-mold sheet feeding cylinder feeds the A-mold into the A-mold positioning arm. A positioning cylinder is located below the end of the B-mold conveyor belt, and below the positioning cylinder is a B-mold loading cylinder. The B-mold rotation device is connected to the B-mold loading cylinder, thereby driving the B-mold to rotate. The B-mold loading cylinder pushes the B-mold into the B-mold positioning arm.

[0053] The mold-closing mechanism 124 includes an upper main shaft 12m and a lower main shaft 12o, which are driven and lifted by a servo motor. Suction rollers are provided at opposite ends of both the upper and lower main shafts 12m and 12o. Specifically, an upper suction roller 12n is provided at the lower end of the upper main shaft 12m, and a lower suction roller 12p is provided at the lower end of the lower main shaft 12o. The upper and lower main shafts 12m and 12o can rotate simultaneously around a vertical axis. The specific structure of the mold-closing mechanism 124 can be found in the "Main Body Detection Mold-Closing System 300" in Chinese Patent Document CN103264461B, "Fully Automatic Anti-Eccentricity Adhesive Tape Mold-Closing Machine 12 for Lenses," and will not be elaborated upon here.

[0054] The tape-applying mechanism is used to apply tape to the outer circumference of molds A and B to fix them in place. After molds A and B are closed, they are supported on the lower main shaft. The specific structure of the mold-closing mechanism 124 can be found in the "Tape-Applying System 400" in Chinese Patent Document CN103264461B, "Fully Automatic Anti-Eccentricity Tape Closing Machine 12 for Lenses," and will not be described in detail here.

[0055] The mold closing and ejection strip 126 is located between the upper spindle 12m and the lower spindle 12o and is higher than the original position of the lower spindle 12o (the lower spindle 12o starts to rise from the original position, and the lower spindle 12o is located below the mold closing and ejection strip 126 when it is in the original position). The lower spindle 12o sinks so that the mold supported on the lower spindle 12o falls on the mold closing and ejection strip 126.

[0056] In this application, the lower suction wheel 12p is connected to a lower suction wheel lifting mechanism. The lower suction wheel lifting mechanism drives the lower suction wheel 12p to rise and fall so that the lower suction wheel 12p extends or retracts relative to the mold closing and ejection belt 126. The lower suction wheel 12p sinks so that the mold supported on the lower suction wheel 12p falls onto the mold closing and ejection belt 126.

[0057] Furthermore, the mold closing machine 12 includes two mold combination mechanisms 124, and the mold closing and ejection belt 126 includes a first mold closing and ejection belt 1261, a second mold closing and ejection belt 1262, and a third mold closing and ejection belt 1263. The two mold combination mechanisms 124 are located on opposite sides of the A mold feeding belt 121 and the B mold feeding belt 122 (in this application, the two mold combination mechanisms 124 are located on the left and right sides of the A mold feeding belt 121 and the B mold feeding belt 122). The lower suction rollers 12p of the two mold-forming mechanisms 124 correspond to the mold-forming ejection belt one 1261 and the mold-forming ejection belt two 1262, respectively. Guide slides 1264 are provided at the ends of both mold-forming ejection belt one 1261 and mold-forming ejection belt two 1262. The guide slides 1264 are inclined to guide the mold on mold-forming ejection belt one 1261 or mold-forming ejection belt two 1262 to mold-forming ejection belt three 1263, which connects with the mold casting feed belt 131. In this application, mold-forming ejection belt three 1263 includes two sets of L-shaped mold-forming ejection belts to improve the structural compactness of the mold-forming machine 12. The guide slide 1264 is set to solve the height difference problem between the first mold closing and ejection belt 1261, the second mold closing and ejection belt 1262 and the third mold closing and ejection belt 1263, and to prevent the lens mold from falling from the first mold closing and ejection belt 1261 and the second mold closing and ejection belt 1262 to the third mold closing and ejection belt 1263 and being damaged by impact.

[0058] like Figure 6 and Figure 7 As shown, the casting machine 13 includes a mold casting feed belt 131, a mold casting discharge belt 132, a mold pick-up and place mechanism, a mold lifting mechanism, a mold rotation and translation mechanism, a mold tooling, a tape tearing mechanism 13f, a casting mechanism 13g, and a tape applicator mechanism 13h.

[0059] The mold pick-and-place mechanism is used to grab the mold on the mold closing and ejection strip 126 and place it on the mold pouring feed strip 131. The mold pick-and-place mechanism includes a positioning gripper four 133, a positioning gripper four opening and closing cylinder 124, a suction cup five 135, a suction cup five translation mechanism 136, and a suction cup five lifting mechanism 137. The suction cup five translation mechanism 136 is connected to the suction cup five 135 to drive the suction cup five 135 to translate along the length direction of the mold pouring feed strip 131, and the suction cup five lifting mechanism 137 is connected to the suction cup five 135 to drive the suction cup five 135 to lift. In this application, the suction cup five translation mechanism 136 is a translation motor, etc., and the suction cup five lifting mechanism 137 is a lifting cylinder, etc. The suction cup five 135 descends to pick up the mold, then rises and translates above the mold pouring feed strip 131, and then descends to place the mold on the mold pouring feed strip 131. The positioning gripper four-opening and closing cylinder 124 is connected to the positioning gripper four 133 to drive the positioning gripper four 133 to open and close along the width direction of the mold pouring feed strip 131 so that the mold is positioned.

[0060] The mold lifting mechanism includes two suction cups 138 and a suction cup lifting mechanism 139. The suction cup lifting mechanism 139 is connected to the two suction cups 138 to drive the two suction cups 138 to lift. The two suction cups 138 are located above the mold pouring feed belt 131 and the mold pouring discharge belt 132, respectively.

[0061] The mold rotation and translation mechanism includes four grippers 13a, a gripper opening and closing cylinder 13b, a gripper rotation cylinder 13c, and a gripper translation module 13d. The gripper opening and closing cylinder 13b is connected to the gripper 13a to drive the gripper 13a to open and close. The gripper rotation cylinder 13c is connected to the gripper 13a and drives the gripper 13a to rotate 90°. The gripper translation module 13d is connected to the gripper 13a to drive the gripper 13a to translate along the setting direction of the mold casting feed strip 131, the mold casting discharge strip 132, and the mold tooling.

[0062] The mold fixture includes a tooling suction cup 13e and a divider. The divider is connected to the tooling suction cup 13e to drive the tooling suction cup 13e to rotate. For example, the divider can be a DS mandrel type divider, a DF flange type divider, or a DE mandrel flange type divider, etc. The specific structure of the mold fixture can be found in Chinese patent document CN115230209A, "Fully Automatic Lens Casting Machine 13," specifically in the section "Mold Fixture 5," and will not be elaborated upon here.

[0063] The tape-tearing mechanism 13f is used to tear the tape end on the mold. The specific structure of the tape-tearing mechanism 13f can be found in the Chinese patent document CN115230209A, "Fully Automatic Lens Casting Machine 13", specifically the "tape-tearing mechanism 13f8", which will not be described in detail here.

[0064] The casting mechanism 13g is used for casting lenses. The specific structure of the casting mechanism 13g can be found in the Chinese patent document CN115230209A, "Fully Automatic Lens Casting Machine 13", specifically in the section "Lens Casting Mechanism 6", and will not be described in detail here.

[0065] The tape applicator 13h is used to apply the tape head to the mold. The specific structure of the tape applicator 13h can be found in Chinese patent document CN115230209A, "Fully Automatic Lens Casting Machine 13", specifically in the section "Tape Applicator 13h7", and will not be described in detail here.

[0066] It should be noted that, because the lens casting speed is much lower than the lens mold closing speed, the lens mold after mold closing will remain on the conveyor belt for a long time waiting for casting. Therefore, this application sets up two sets of casting machines 13 to improve the lens casting efficiency, thereby improving the lens production efficiency of the integrated lens mold closing and casting machine. A mold pick-and-place mechanism is only set at the front end of the mold casting feed belt 131 of the first set of casting machines 13, such as... Figure 8 As shown, the mold pouring feed of the second set of casting machines 13 does not have a mold pick-and-place mechanism, and the rest of the structure of the second set of casting machines 13 is the same as that of the first set of casting machines 13. The mold pouring feed belts 131 of the two sets of casting machines 13 are connected, and the mold pouring discharge belts 132 of the two sets of casting machines 13 are connected.

[0067] like Figure 9 and Figure 10 As shown, the feeding machine 14 includes a mold feeding belt 141 and a mold picking mechanism. The mold feeding belt 141 is connected to the mold casting discharge belt 132 of the next set of casting machines 13. The mold picking mechanism is used to pick up the mold on the mold feeding belt 141 and place it in the mold frame.

[0068] Specifically, the mold-picking mechanism includes a suction cup 142, a suction cup rotary cylinder 143, a suction cup lifting module 144, a suction cup forward and backward translation module 145, and a suction cup left and right translation module 146. The suction cup rotary cylinder 143 is connected to the suction cup 142 to drive the suction cup 142 to rotate. The suction cup lifting module 144, the suction cup forward and backward translation module 145, and the suction cup left and right translation module 146 are respectively connected to the suction cup 142 to drive the suction cup 142 to lift, move forward and backward, and move left and right.

[0069] Furthermore, the feeding machine 14 also includes an upper and lower frame mechanism. The upper and lower frame mechanism includes a mold frame placement frame 147, a mold frame support plate 148, a support plate lifting mechanism 149, and a mold frame translation mechanism.

[0070] The mold frames are vertically spaced on the mold frame placement rack 147, and the front and rear sides of the mold frame placement rack 147 are provided with crossbars for supporting the mold frames. The mold frame placement rack 147 is placed on the mold frame support plate 148. The support plate lifting mechanism 149 is connected to the mold frame support plate 148 to drive the mold frame support plate 148 to rise and fall. In this application, the support plate lifting mechanism 149 is a lifting motor or the like. The mold frame translation mechanism includes a mold frame translation cylinder 14f and a mold frame fixing mechanism 14a. The mold frame translation cylinder 14f is connected to the mold frame fixing mechanism 14a to drive the mold frame fixing mechanism 14a to translate left and right. The mold frame fixing mechanism 14a can be fixed relative to the mold frame or separated from it.

[0071] For example, the mold frame fixing mechanism 14a includes a hook and a hook opening and closing cylinder. The hook opening and closing cylinder is connected to the hook to drive the hook to rotate so as to open and close. When the hook is open, the mold frame fixing mechanism 14a is separated from the mold frame. When the hook is closed, the mold frame fixing mechanism 14a is fixed to the mold frame.

[0072] The mold frame translation cylinder 14f moves the mold frame fixing mechanism 14a to below a mold frame on the mold frame placement rack 147; the hook opening and closing cylinder drives the hook to close, so that the mold frame and the mold frame fixing mechanism 14a are relatively fixed; the mold frame translation cylinder 14f moves the mold frame fixing mechanism 14a to the left, so that the mold frame fixing mechanism 14a moves the mold frame to the left, thereby causing the mold frame to detach from the mold frame placement rack 147; the mold picking mechanism picks up the mold. The mold is placed horizontally on the feeding belt 141. After the mold is flipped at a certain angle, it is placed in the mold frame at an angle or vertically. The mold frame fixing mechanism 14a drives the mold frame to move to the right. Then the hook opening and closing cylinder drives the hook to open, so that the mold frame filled with mold is placed back on the mold frame placement rack 147. The support plate lifting mechanism 149 drives the mold frame support plate 148 to rise or fall. The above actions are repeated to load the next mold frame until the mold frame on the mold frame placement rack 147 is filled with mold.

[0073] Several roller shafts 14b are provided on the front and rear sides of the mold frame fixing mechanism 14a, and the roller shafts 14b are used to guide the mold frame during translation.

[0074] Furthermore, the feeding machine 14 also includes a mold storage belt 14d, which is connected to the mold feeding belt 141. The end of the mold storage belt 14d is provided with a material stop component. The mold storage belt 14d is used to store molds that are not placed in the mold frame when changing the mold frame.

[0075] Furthermore, the feeding machine 14 also includes two corner cylinders 14e, which are fixedly mounted on opposite sides of the mold frame placement frame 147. Each corner cylinder 14e includes a cylinder body and a rotating arm, with the cylinder body driving the rotating arm to rotate 90°. When the rotating arm rotates to a horizontal position, the mold frame placement frame 147 is limited and cannot be moved out; when the rotating arm rotates to a vertical position, the mold frame placement frame 147 can be moved out, allowing for replacement of the mold frame placement frame 147.

[0076] The lens molding and casting integrated machine described in this application operates as follows:

[0077] 1. Feeding machine 11:

[0078] 1.1 The A mold frame and the B mold frame are conveyed by the A mold frame infeed conveyor belt 1111 and the B mold frame infeed conveyor belt 1121, and the A mold frame infeed conveyor belt 1131 and the B mold frame infeed conveyor belt 1141 convey the A mold frame and the B mold frame to the A mold frame placement platform 113 and the B mold frame placement platform 114, respectively.

[0079] 1.2 The lifting cylinder 117 of the placement platform drives the A mold frame placement platform 113 and the B mold frame placement platform 114 to descend and align with the A mold frame exit conveyor belt 1112 and the B mold frame exit conveyor belt 1122.

[0080] 1.3 The picking mechanism picks up the A mold and B mold in the A mold frame and B mold frame on the A mold frame placement table 113 and B mold frame placement table 114 through the suction cup 11c, and places them on the A mold conveyor belt 1 and B mold conveyor belt 1 to send them to the subsequent work station.

[0081] 1.4 After the A mold and B mold in the A mold frame and B mold frame are removed, the forward and reverse motor 116 flips, and the empty A mold frame is sent out through the A mold frame in-out conveyor belt 1131 and the A mold frame out-out conveyor belt 1112, and the empty B mold frame is sent out through the B mold frame in-out conveyor belt 1141 and the B mold frame out-out conveyor belt 1122.

[0082] 2. Mold closing machine 12:

[0083] 2.1 The A-mold positioning and placement mechanism places the A-mold on the A-mold feeding belt 121. After the A-mold is positioned by the positioning cylinder at its rear end, the A-mold suction cylinder drives the A-mold suction cup to descend and hold the A-mold. The A-mold feeding cylinder then delivers the A-mold to the A-mold positioning arm.

[0084] 2.2 The B-mold positioning and placement mechanism places the B-mold on the B-mold feeding belt 122. The B-mold is transported to the positioning cylinder at its rear end by the B-mold feeding belt 122. After positioning, the B-mold loading cylinder loads the B-mold in two stages. The first stage rises and drives the B-mold to rotate through the B-mold rotation device. With the help of the vision positioning camera, the B-mold is located on the scale line on the B-mold lens to achieve the position correction function. The second stage rises and places the B-mold in the B-mold positioning arm.

[0085] 2.3, The A mold positioning arm and the A mold center positioning cylinder clamp and fix the A mold. After the B mold center positioning cylinder and the B mold positioning arm clamp the B mold, the B mold center positioning cylinder releases the air and the locking cylinder locks and positions the mold. Then the B mold feeding cylinder feeds the mold a second time.

[0086] 2.4 The B-model has circumferential positioning scale lines. The physical image captured by the visual positioning camera is transmitted to the CPU image processing system. The image processing positioning software calculates the offset position of the B-model according to the positioning scale lines, and then feeds it back to the motion control circuit through the interface circuit. The B-model rotation device drives the B-model to rotate to complete the correction function.

[0087] 2.5, The positioning mechanism 123 moves as a whole to the position of the mold closing mechanism 124 on the left or right side;

[0088] 2.6 The upper spindle 12m and the lower spindle 12o move relative to each other under the drive of the servo motor. The upper suction wheel 12n and the lower suction wheel 12p on the upper spindle 12m and the lower spindle 12o attract mold A and mold B. At this time, the positioning arm of mold A and the positioning arm of mold B and the center positioning cylinder of the positioning mechanism 123 are released. The upper spindle 12m and the lower spindle 12o move in opposite directions. According to the set center thickness, when the upper spindle 12m and the lower spindle 12o move into place, they stop.

[0089] 2.7 The tape cutting and suction mechanism reaches the working position and applies tape to molds A and B. Then, the upper spindle 12m and the lower spindle 12o rotate synchronously through a stepper motor to complete the tape wrapping. The tape cutting blade cuts the tape, and at the same time, the tape folding cylinder actuates to complete the mold closing operation.

[0090] 2.8 Return of positioning mechanism 123 during mold closing process: When the upper spindle 12m and the lower spindle 12o attract and remove molds A and B on positioning mechanism 123, molds A and B return, positioning mechanism 123 returns to proceed to the next step of the piece feeding and positioning process, and sends the molds A and B to the mold closing mechanism 124 on the other side for the next positioning.

[0091] 2.9 The lower spindle 12° retracts, and the resulting resin lens, along with the mold, is placed on the mold closing and ejection belt 126 for output.

[0092] 3. Pouring by casting machine 13:

[0093] 3.1 The mold pick-and-place mechanism places the mold after mold closing onto the mold pouring feed belt 131, which then conveys the mold.

[0094] 3.2 The suction cup 138 of the mold lifting mechanism descends to pick up the mold from the mold pouring feed belt 131. The gripper of the mold rotation and translation mechanism grabs the mold and rotates it 90° from a horizontal state to a vertical state for pouring.

[0095] 3.2 The mold rotation and translation mechanism sends the mold to the tooling suction cup 13e. The tooling suction cup 13e picks up the mold on the mold rotation and translation mechanism. The divider drives the tooling suction cup 13e to rotate so that the mold's gate faces upward.

[0096] 3.3, The tape-tearing mechanism 13f tears the tape head open, exposing the pouring gate;

[0097] 3.4 The casting mechanism performs lens casting;

[0098] 3.5 After pouring, the tape-applying mechanism seals the pouring port with tape for 13 hours.

[0099] 3.6 The jaws of the mold rotation and translation mechanism grab the mold and rotate it 90° from a vertical position to a horizontal position. The suction cup 138 of the mold lifting mechanism picks up the mold and places it on the mold pouring and discharge belt 132.

[0100] 4. Material feeding by feeding machine 14:

[0101] 4.1 The mold frame translation cylinder 14f drives the mold frame fixing mechanism 14a to move to the area below a mold frame on the mold frame placement frame 147; the hook opening and closing cylinder drives the hook to close, so that the mold frame and the mold frame fixing mechanism 14a are relatively fixed.

[0102] 4.2 The mold frame translation cylinder 14f drives the mold frame fixing mechanism 14a to translate to the left, so that the mold frame fixing mechanism 14a drives the mold frame to translate to the left, thereby causing the mold frame to detach from the mold frame placement frame 147.

[0103] 4.3 The mold picking mechanism picks up the horizontally placed mold on the mold feeding belt 141, flips the mold at a certain angle, and then places the mold tilted or vertically in the mold frame;

[0104] 4.4 The mold frame fixing mechanism 14a drives the mold frame to move to the right, and then the hook opening and closing cylinder drives the hook to open, so that the mold frame filled with mold is placed back on the mold frame placement rack 147.

[0105] 4.5 The support plate lifting mechanism 149 drives the mold frame support plate 148 to rise or fall, repeating the above actions to load the next mold frame until the mold frame on the mold frame placement rack 147 is full of molds.

[0106] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0107] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0108] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A lens mold clamping machine, characterized in that, The lens mold closing machine includes: A-mold feed belt, B-mold feed belt and mold closing and ejection belt; The mold closing mechanism comprises two sets, located on opposite sides of the A-mold feed belt and the B-mold feed belt. Each mold closing mechanism includes an upper spindle and a lower spindle driven by a servo motor for lifting. Suction rollers are provided at opposite ends of both the upper and lower spindles. The upper and lower spindles can rotate simultaneously around their axes. A tape-applying mechanism is used to apply tape to the outer circumference of molds A and B to fix them. After molds A and B are closed, they are supported on the lower main shaft. The mold closing and ejection strip is located between the upper and lower main shafts and is higher than the original position of the lower main shaft. The lower main shaft is lowered so that the molds supported on the lower main shaft fall onto the mold closing and ejection strip. A positioning mechanism is located at the ends of the A-mold feed belt and the B-mold feed belt. The positioning mechanism includes a positioning gripper three and a positioning gripper three moving mechanism. The positioning gripper three is used to grip and position the A-mold and the B-mold. The positioning gripper three moving mechanism is connected to the positioning gripper three to drive the positioning gripper three to move to the mold closing mechanism. The mold closing and ejection belt includes mold closing and ejection belt one, mold closing and ejection belt two, and mold closing and ejection belt three. The lower suction rollers of the two mold assembly mechanisms are respectively located on mold closing and ejection belt one and mold closing and ejection belt two. The ends of mold closing and ejection belt one and mold closing and ejection belt two are provided with guide slides. The guide slides are inclined to guide the mold on mold closing and ejection belt one or mold closing and ejection belt two to mold closing and ejection belt three.

2. The lens mold closing machine according to claim 1, characterized in that, The lens mold closing machine also includes: The A-mold positioning and pick-up mechanism is located at the front end of the A-mold feeding belt. The A-mold positioning and pick-up mechanism includes a positioning gripper, a positioning gripper opening and closing cylinder, a suction cup, a suction cup translation mechanism, and a suction cup lifting mechanism. The positioning gripper opening and closing cylinder is connected to the positioning gripper to drive the positioning gripper to open and close. The suction cup translation mechanism is connected to the suction cup to drive the suction cup to translate. The suction cup lifting mechanism is connected to the suction cup to drive the suction cup to lift.

3. The lens mold closing machine according to claim 1, characterized in that, The lens mold clamping machine further includes: a B-mold positioning and placement mechanism; the B-mold positioning and placement mechanism includes a second positioning gripper, a second positioning gripper opening and closing cylinder, a second positioning gripper translation mechanism, a second B-mold lifting platform, and a first B-mold lifting platform lifting cylinder; the second positioning gripper opening and closing cylinder is connected to the second positioning gripper to drive the second positioning gripper to open and close, and the second positioning gripper translation mechanism is connected to the second positioning gripper to drive the second positioning gripper to translate; the second B-mold lifting platform and the first B-mold lifting platform lifting cylinder are located at the front end of the B-mold feeding belt, and the second B-mold lifting platform lifting cylinder is connected to the second B-mold lifting platform to drive the second B-mold lifting platform to rise and fall.

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